Electromagnetic separator.



B. l. MUTTLNGER.

ELECTROMAGNETIC SEPARATOR.

APPLICATION FILED AUG.4,1913.

Patented Apr. 21, 1914.

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ELECTROMAGNETIC SBPARATOR.

APPLIGATTON FILED AUG. 4, 15313v Patented Apr. 21, 1914.

BYRON T. MUETINGER, F YOUNGSTOWN, OHI'D.

ELECTROMAGNETZC SEPARATOR.

neonate.

certain new and useful Improvements in Electromagnetic ,Separators, of which. the following is a specification;

My invention is an improved apparatus for separating magnetic material from pot-' to ters" sand, clay, slip, grain, seed, flour, etc.

The invention primarily has for its object to provide a simple, inexpensive device for the purpose, which is self-regulating, easily cleaned and one which can be inanu- 115 factured at a low cost.

Generically, the invention provides an electroinagnet havin a passage through the same, bridged by p ates which have apertures or passageways extending in the direction of the lines of force, the plates being,

in effect, the poles of the magnet. The material to be separated is passed through the openings in the pole plates parallel to the direction of the lines of force, thereby in creasing the eiiectiveness and efi'iciency of the apparatus.

Heretofore it has been the practice, in those separators now in use with which ll am familiar, to ass the material through the magnetic field at right angles to the lines of force. In such type of apparatus, it has been found that the iron will accumulate atthe edge of the perimeter of the poles and on one side only, bridge the air gap, which is turn strengthens the field at this place, and very rapidly reduces the air gap, and chokes up the apparatus.

It is one of the objects of my. invention to avoid this objection.

" More in detail, the invention includes these novel features of construction, combination and arrangement of parts, all of which will be first fully described, then be specifically pointed out in the appended claims, reference being had to the accom panying drawings, in which:

Figure 1 is a central vertical longitudinal section of one form of the apparatus. Fig. 2 is a top plan view of the same. Fig. a central horizontal section on the line 33 of Fig. 1. Fig. 4 is a central vertical longitudinal section of a modification adapted for the separation of-magnetic material from slip or other fluid substances. Fig; 5 is a 5 top plan View of another modification of the apparatus, the same being made of rec- Specification of Letters Patent.

Application filed August 4, 1918. Serial No. 782,5!60.

nular wire pocket 0 equalized.

li e-tented r.

tangular shape of laminated material. 6 is an enlarged detail plan view of a tion of the apparatus shown in Fig. 5, illustrating the lainiinc of the pole pl. Fig. 7 is a detail vietvofm. IFiithcr i cation hereinafter specifically refer-re Fig. 8 is a. detail sectional view of fin modification. By reference to the accompanying t ings, in which like numerals and lettr reference indicate lilre parts i l figures, it will be seen that l d magnet field which is of the inn and is composed of an upper in lower half 2, each section including an to receive the inn;

Wire, a central l8 and beveled ends 4 adjacent to the inside of if. Each section of the magnet also in flange 5 and the two sections are together by bolts 7, or otherwise. Each the magnet sections 2 and 6 has an. inn annular section 8 to receive the pole 11 and 14 respectively which hrid central passage 18 oi the pole plate 11 and. 14 has iiol respectively bored through p axis of the passage 18 and to t lines of force.

13 is the air gap which may he length throughout, or by melting ing faces of the plates 11 and coniforrn, as shown in i, to lG-l the air gap at the perimeter, the relic: of the path to the center of the plate will he 16 is a brass or other non-magnetic r' suitably packed at 1.7 to keep the me particles out of the space between t eled surfaces 4: and out oi? the wire ch tub:

When the apparatus is to he used to dry materials, such as sand, flour, gruii'i,

. seed, etc.,.,the foregoing described. parts are all that are essentially necessary, the in 1m rial being discharged into the upper end ot the 18 and gravitatiug throug passage, the non-magnetic nurterial through the pole plates and bein at the lower end of the pass a magnetic material is separate pole plates and clings to the Will bores of the plates. As the nv rial clogs up the pole piste sages, the dew is proportions and finally stopped. in ord 'c material, (it

p 7 handling slip, slip is putters clay after it, 10

from the magnet, the top plate 14: removed and the bottom portion is cleaned by blowing with compressed air. The iron contained in a car load of sand, for example, does-not exceed probably one pound, so the cleaning out is not considered a disadvanta e.

@Vheuthe ap aratus is to be employed in has been ground, mixed with water and run through a 126-mesh sieve, the material having the consistency of cream), the form shown in Fig. 4 is employed, and in this :ltorm, the bottom of the passage 18 is closed by a plate 19 which'carries a three-way valve 20, one way of which is connected to a waste pipe 21, while another way is connected to a pipe 22 from the slip storage tank. The top of the passage 18 is also closed by a spout 24:, whose flange 23 is bolted or otherwise secured to the base flange 5 of the upper magnet section 6. In using this form, the slip is forced upwardly by hydrostatic pressure through the passage 18, the magnetic particles accumulating at the poles 11-14, while the slip passes out of the spout until the pole plates become clogged with magnetic material, whereupon the flow automatically ceases. The valve 20 is then closed to the pipe 22 and opened to the pipe 21, the current is shut oil, the top plate 14 and spout 24 removed, and a bucket of water is dashed into ;the top of the passageway 18 to remove theliron which is washed out into the waste pipe 21.

If desired, the magnetic-field and pole plates may be built up in rectangular form of laminated material as, for example, the one indicated in Figs. 5 and 6, the corners being solid and the laminae 26 of the field being bolted or otherwise secured to the corners. The pole plates may be made of laminae 27 spaced apart, as shown at 28, to form the passageways.

In Fig. 8, is illustrated a modified form of the pole plate construction. In this construction the alternate holes 15-12 in the said plates are bored, slightly larger than the other holes and into the smaller holes pins 29 are tightly set, as clearly shown in the said Fig. 8. It will be noticed byreferring to said Fig.3, that-the pins of the opposing plates project into the larger holes ofihe opposing plates. In this form, the

openings in the opposing plates are rela-,

tively staggeredly arranged and this arrangement I have found to be of advantage in separating metallic particles from certain substances.

From the foregoing description taken in connection with the accompanying drawings, the complete construction, operation and advantages of the invention will, it is believed, be clear to those skilled in the art,

"and X desire to say that slight changes in the details of construction and arrangement of parts may be made without departing from the spirit of the invention.

liVhat I claim is:

1. A field magnethaving a passageway through the same adapted for the passage of the material to be separated, pole plates bridging such passageway and spaced apart to form an interpolar gap, said plates having bores extending through the same in the direction of the lines of magnetic force between and through the plates.

2. A field magnet having a passageway through the same, pole plates bridging such passageway and spaced apart to form an interpolar gap, said plates having bores extending through the same in the direction of the lines of magnetic force between and through the plates, and means for passing the materials to be separated through said passage way.

3. A field magnet having a passage way through the same adapted for the passage of the materials to be separated, pole plates bridging such passage way and spaced apart to form an interpolar gap, said pole plates having bores extending through the same in the direction of the lines of magnetic force between and through the plates, one of said pole plates being removable.

4. A field magnet having a passageway through the same, pole plates bridging such passageway and spaced apart to form an interpolar gap, said pole plates having bores extending through the, same in lhc direction of the lines of magnetic force between and through the plates, means for passing the materials to be separated through said passageway, one of said pole plates being removable.

5. A field magnet having a pas ageway through the same adapted for passage of the materials to be separated, pole plates bridging such passageway and spaced apart to form an interpolar gap, said pole plates having boresextending through the same in the direction of the lines of magnetic force through and between the plates, one of said pole plates being removable, and said field magnet having-a wire chamber, magnet wire wound in said chamber for niagnclizing purposes, and means for excluding the magnetic particles from said Clillll'll'JGl.

GJA field magnet having a passageway through the same adapted for the passage of the material to be separated, pole plates bridging such passage way and spaced apart to form an interpolar gap, said pole plates having bores extending through the same in the direction of the lines of magnetic force through and between the plates, means for passing the materials to be separated through said passageway, one of said pole plates being removable, said field magnet having a wire chamber, magnet wire we' nd in said chamber for magnetizing pur uses, and means for excluding the magnetic particles from said chamber.

7. A magnetic separator, comprising a field. magnet having a central passageway from end to end adapted for the passage of the materials to be separated, the wall of said passageway having within it a magnet wire chamber and provided with a uniform annular opening between said chamber and the central passageway to form a gap, pole netic material be caught by the pole plates 8. A magnetic separator, comprising a field magnet having a central passageway from end to end adapted for the passage of the materials to be separated, the wall of said passageway having within it a magnet wire chamber and provided with a uniform annular opening between said chamber and the central passageway to form a'gap, pole plates held within said central passageway and forming a dam within the same. said plates being spaced apart to leave an interpolar gap between them. means for closing the gap of the field magnet against entry of the material into the wire chamber, a winding in said chamber, said pole plates having passageways extending through the same in the general longitudinal direction" of the central passageway, whereby the nonmagneticmaterial may be passed through the passageway and pole plates, and the magnetic material be caught by the pole plates. said pole plates having their opposing faces coniform.

9. magnetic separator comprising a tieid magnet with a central passageway from end to end adapted for the passage of the materials tobe separated, the all of which passage a has within it. a' magnet wire chambe' and provided with an internal annular opening between said chamber and the central passageway to form a gap. pole' plates held within said central passageway and forming a dam \vithin'the same. said plates being spaced apart to leave an interpolar gap between them, means for closing the gap of the field magnet against entry of material into the wire chamber, a winding in said chamber, said pole plates having passagewa 5 extending through the same in the genera longitudinal direction of the cent'al passageway whereby the non-magnetic material may be passed through the passageway and pole plates, and the magnetic material be caught by the pole plates, said pole plates being spaced apart a greater distance at their perimeters than in the center to equalize the magnetic reluctance at the center.

10. A field magnet having a passageway through the same adapted for the passage of the materials to be separated, pole plates bridging such passageway and spaced apart to form an interpolar gap, said pole plates having bores extending through the same in "the direction of the lines of magnetic force through and between said plates, the bores of the opposing plates being relatively staggeredly arranged.

11; A field magnet. having a passage way through the same adapted for the passage of the materials to be separated, pole plates bridging such passageway and spaced apart to form an interpolar gap, said plates having bores extending through the same in the direction of the lines of magnetic force through and between the plates, the alternate ones of the bores in the plates being of larger diameter than the others, pins tightly fitted in the smaller bores of the plates, the pins of one plate projecting into the larger bores of the opposmg plate.

12. In a magnetic separator. an iron clad electromagnet including a field magnet and an energizing winding therefor, said field magnet having a passage way extending axially through the same, pole plates within said passage way and having bores extendin in the direction of the lines of force through and between said plates, through which bores the material to be separated is adapted to pass. said pole plates being spaced apart to form an interpolar gap.

13. In a magnetic separator. an iron clad electro-magnet including a field magnet and an energizing winding therefor, said field magnet having a passageway extending axially through the same, and adapted for the passa e of the materials to be separated, a pole plate within said passageway and having bores extending through the same in the direction of the lines of force through said plate, through which bores the material to be separated is adapted to pass.

BYRON T. MOTTINGERQ Witnesses:

J. J. McConmcK, H. E. Mrnus. 

